Delavan 1.65-80-a Oil Burner Fuel Nozzle 1.65 Gph 80 Degree Type a Hollow Cone

Product Description

The Delavan 1.65-80-a is an oil burner fuel nozzle designed for residential and light commercial heating applications. It delivers a flow rate of 1.65 gallons per hour at a spray angle of 80 degrees using a Type A hollow cone spray pattern. HVAC technicians and burner service professionals rely on this nozzle for reliable fuel atomization in oil-fired heating systems, including forced air furnaces and boilers. The hollow cone pattern concentrates droplets along the outer edge of the spray cone. This design promotes good ignition characteristics and low-noise combustion, which is critical in residential settings where quiet operation matters. The nozzle is suited for throughputs up to 2 gallons per hour, making it appropriate for a wide range of residential heating units. Proper fuel atomization is one of the most important factors in clean, efficient oil burner operation. A correctly matched nozzle reduces smoke, soot buildup, and unburned fuel residue in the combustion chamber. The 80-degree spray angle helps distribute the fuel-air mixture evenly within standard burner head configurations commonly found in oil-fired systems. The Type A designation refers to a standard hollow cone orifice design used across many Delavan product lines and is compatible with a broad range of residential oil burners. Service technicians performing annual tune-ups or replacing worn nozzles will find this unit straightforward to install using standard nozzle wrenches. This nozzle is a direct replacement option for systems specifying a 1.65 GPH, 80-degree, hollow cone nozzle. Keeping the correct nozzle on hand helps reduce downtime during heating season service calls.

• 1.65 GPH flow rate suitable for residential oil-fired heating systems up to 2 GPH throughput
• 80-degree hollow cone spray pattern concentrates droplets at the outer edge for improved ignition and quiet combustion
• Type A orifice design compatible with a wide range of standard residential oil burners

Product Highlights

The Delavan 1.65-80-a oil burner nozzle provides reliable fuel atomization with an 80-degree hollow cone spray pattern, supporting clean ignition and low-noise combustion in residential oil heating systems.

Product Information

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 1.65-80-a

Technical Specifications

• Flow Rate: 1.65 gallons per hour
• Spray Angle: 80 degrees
• Spray Pattern Type: Type A Hollow Cone
• Maximum Throughput: 2 gallons per hour
• Application: Oil-fired burners, residential and light commercial heating